Ingot-stripper.



N. 88094. PATENTED MAY 19 1908.

O 8 R. s. KIRK.

INGOT STRIPPER.

APPLICATION FILED FEB. 6, 1907. 6 SHBETB SHEET 1.

WITNESSES INVENTOR W MAM 'k @Wr W A 3 n1: NORRIS FITIRS 50.. WASNINOTON,5.1:

.888 094. ATENTED MAY 1 1 0 N0 R. s. KIRK. P 9 8 INGOT STRIPPER.

APPLICATION FILED FEB. 6, 1907- 6 SHEETS-SHEET 2.

INVENTOR R 8 WM? flwmd qmu WITNESSES THE NORRIS PETERS c0" \vAsnmcran,o. c

PATENTED MAY 19, 1908. R. S. KIRK.

INGOT STRIPPER.

APPLIOATION FILED FEB. a, 1907.

6 SHEETSSHEET 3.

Q'QIWI', y X

WITNESSES 1H: uonms PITIR! to vusnmurou, n. c.

PATENTED MAY 19, 1908.

6 SHEBTSSHEET 4.

R S KIRK INGOT STRIPPER.

APPLICATION FILED FEB. 13, 1907.

WITNESSES 1n: NoRms FITRRS ca, wnsnmaro v. n. c.

No. 888,094. PATENTED MAY 19, 1908.

R. S. KIRK.

INGOT STRIPPER.

APPLICATION FILED FEB. s, 1907.

6 SHEETS-SHEET 5.

THE NORRIS PETERS c0-. \wlsmrycmu, 0.1:.

No. 888,094. .PATENTED MAY 19, 1908.

v -R. SrKIRK. INGOT STRIPPER.

APPLICATION FILED r1113. 6, 1907.

6 SHEETS-SHEET 6.

Q. @1513 X Q GMMMHQb NJ, Nh (b as WITNESSES THE NORRIS Psm'Rs co.,wasnmcrou, 0. c.

UNITED STATES r anna OFFICE.

RAPHAEL S. KIRK, OF ALLIANCE, OHIO, ASSIGNOR TO THE ALLIANCE MACHINECOMPANY, OF ALLIANCE, OHIO, A CORPORATION OF OHIO.

INGOT-STRIPPER.

Application filed February 6, 1907.

To all whom it may concern:

Be it known that I, RAPHAEL S. KIRK, of Alliance, Stark county, Ohio,have invented a new and useful lngot-Stripper, of which the following isa full, clear, and exact description, reference being had to theaccompanying drawings, forming part of this specification, in whichFigure l is a front view of an ingot stripper embodying my invention;Fig. 2 is an end view of the same with a portion of the tongs removedand shown in Fig. 2; Fig. 3 is a sectional plan on the line IIIIII ofFig. 1 Fig. 4 is a View partly in elevation and partly in section of theupper portion of the stripping column and of the gearing carried therebyFig. 5 is a plan view of the gearing and drums at the upper end of thestripping column, and Figs. 6 and 7 are two views taken at right anglesto each other and partlyin elevation, and showing the lower portion ofthe stripping colunm, and the tongs.

My invention has relation to ingot strippers, andis designed to providea novel and el'licient mechanism of this character having a movablestripping column with a chain adapted to pull directly upon the tongscarrier and actuated by gearing mounted at the top of the column andmovable therewith.

The invention is also designed to provide simple and effective gearingfor actuating the tongs carrier, to provide improved means for operatingthe tongs, and to improve the general construction, and arrangement ofthe parts, as will hereinafter more fully appear.

Referring to the accompanying drawings, the numeral 2 designates a cranebridge, which ismounted in the usual manner upon a suitable runway ortracks 3, upon which it is actuated by a motor 4 and gearing 5.

6 designates the frame of a trolley carriage, which is mounted to moveon the girders 7 of the traveling crane bridge by means of the motor 3and gearing 9. Depending from the trolley frame are guides 1.0 for avertically movable stripping column 11, to the lower end of which issecured a bull-nose or ingot stop 12. The stripping column 11 is movedup or down through the dependent guides 10 by means of the ropes orcables 13, which pass over sheaves 14 rotatably mounted in the strippingcolumn, being connected at one end to a winding drum 15 and at theiropposite ends to the pulleys 16 on the trolley carriage. The drumSpecification of Letters Patent.

Patented May 19, 1908.

Serial No. 356,040.

15 is actuated by an electric motor 17 through the gearing 18, (see Fig.3).

Mounted to move vertically on guides 19 within the lower portion of thestripping column, is a cross-head 20 to which are pivoted at 21 the tongarms 22. Secured to the cross-head 20, by means of nuts 23, or othersuitable means, is a vertically arranged tension bar 24, which extendsupwardly through guides 25 within the stripping column, and is securedat its upper end to a cross-head 26. The cross-head 26 has extensions 27to which are connected a chain 28, whose ends are connected to drums 29,mounted on the upper ends of the stripping column. These drums areloosely mounted on shafts 30 which carry eccentrics 31 One end of eachof the drums has an internal gear wheel 32, whose teeth 33 engage theteeth of pinions 34, which are mounted on bushings 34 on the eccentrics3]. of the shafts 30, (see Fig. 4).

Each pinion 34 has an arm 35, which is connected to the smaller arm ofthe other pinion by a pin 36, (see Fig. 5). The two shafts 30 are gearedtogether by means of the intermeshing spur wheels 37, one of which isdriven by a pinion 38 on a stub shaft 39, mounted on a bracket 40 at theupper end of the stripping column, and carrying a bevel gear wheel 41which is driven by a bevel Wheel 42 at the upper end of a squared,vertical shaft 43. The shaft 43 has a bearing at its upper end in thebracket 40, and at its lower end is stepped in a bearing 41 projectinglaterally from the lower end portion of the stripping column. This shaft43 slides vertically through a bevel wheel 44 mounted on the trolleycarriage and driven by-a bevel pinion 45, carried by a stub shaft 46.The stub shaft 46 has a spur gear wheel 47 driven by a pinion 48 on theshaft of a motor 49. As the stripping column is moved up and down, theshaft 43 slides through the pinion 44, so that the shaft 43, and therebythe drums 29, may be actuated in all positions of the stripping column.The arrangement of gearing for actuating the drums 29 provides for thenecessary reduction in speed, and enables said drums to exert a powerfullifting action.

The gears 37 are keyed to the shafts 30, of which the eccentrics 31 area part, and the relation of those eccentrics in the bushings 34 of thegears 34, of which the arms 35 are a part, carries the line of contactof the teeth of the gears 34 around the internal gears 33, so

that one rotation of the eccentrics will advance the gears 33 a distanceequal to the difference in the number of teeth in the gears 33 and 34.The arms 35 being connected by the pin 36, have a rocking motion on thispin which prevents rotation of the gears 34. The gears 33, beingconnected directly to the drums 29, the eccentrics 3 1. may be rotatedin either direction a sufiicient number of turns to give the requiredstroke for the stripping action.

The tong arms 22 are provided with up ward extensions 22, above theirpivots 21, and these extensions have a slotted connection 50 with thedepending arms of hell crank levers 51. The bell crank levers 51 arefulcrumed at 52, and to their other arms are connected vertical rods 53,which extend upwardly within the stripping column and pass through thestops 54. Springs 55 surround these rods, these springs being situatedbetween the stops 54, which are carried by the stripping column, andcollars 56 on the rods. When the tongs-carrying cross-head 20 is loweredto its extreme lower position, these rods 53, being constrained by thespring supports on the stripping column, act to move the extensions 22"of the tong arms inwardly, and thus open the tongs so that they can passover the lugs of the mold A, (Fig. 6).

The operation is as follows :The crosshead 20 being lowered to itsextreme position, the tongs are opened in the manner described inposition to engage the mold lugs, and with the ingot stop or bull nose12 resting upon the top of the ingot in the mold, the stripping columnhaving previously been lowered to this position. The chain drums 29 arenow actuated, making practically one revolution, and reeving in both endportions of the chain equally. A direct upward pull is thereby exertedupon the bar 24, which in turn raises the lower cross-head and stripsthe mold. As soon as the mold has cleared the ingot, the strippingcolumn is then raised by actuating the winding drum 15, and the trolley,and crane, are moved to carry the mold to the desired point.

The advantages of my invention result from the arrangement of the chaindrums and their actuating gearing at the top of the stripping column,and arranged to be driven by a motor which can be carried on the trolleyframe also in the means by which the chain exerts a direct pull on thetongs-carrying cross-head without the interposition of gearing betweenthe chains and the cross-head; also in the provision of the simple meansfor opening the tongs when the cross-head is lowered, and in thegenerally simple and practical construction and combination of theapparatus as a whole.

It will be obvious that those skilled in the art may make variouschanges in the construction and arrangement of the several the column, adrum journaled on said column, a flexible device connected to the saiddrum and'to the tongs-carrier and arranged to effect a directupward'pull thereon, and means for actuating said drum in differentpositions of the column; substantially as described.

2. In an ingot stripper, a vertically movable stripping column, meansfor raising and lowering the same, a tongs-carrier guided in the column,actuating drums on said column, and a winding chain connected to saiddrums and to the tongs-carrier to exert a direct upward pull thereon;substantially as described.

3. An ingot stripper having a vertically movable stripping column, meansfor raising and lowering the same, a tongs-carrier guided in the column,winding drums j ournaled on the column, and a flexible device connectedto the drums and to the tongs-carrier and arranged to exert a directupward pull on the tongs-carrier substantially as described.

4. In an ingot stripper, a vertically movable stripping column, meansfor raising and lowering the same, a tongs-carrier guided within thecolumn, winding drums journaled at the upper end of the column, and awinding chain connected to the drums and to the tongs-carrier, andgearing for actuating said drums in dilierent positions of the column;substantially as described.

5.. In an ingot stripping apparatus, a trolley having a depending guideframe, a stripping column arranged to move vertically in the dependingguide frame, a hoisting rope connected to the column, a winding drum forthe rope, a tongs-carrier movable in the column, and gearing mounted onthe upper end of the column and connected to the tongscarrier tov exerta direct upward pull thereon; substantially as described. d

6. In an ingot stripping apparatus, a vertically movable strippingcolumn, a tongscarrier, a lower cross-head mounted in guides in thecolumn and having tongs connected thereto, a bar connected to thecross-head and extending upwardly within the column, a chain connectedto the upper end of the bar, and winding drums and gearing at the upperend of the column for said chain; substantially as described.

7. In an ingot stripper, a vertically movable stripping column,atongs-carrying crosshead mounted to move in said column, a barextending upwardly from the cross-head the last named cross-head, a pairof winding drums at the upper end of the column, to which the chain isconnected, and gearing for actuating the drums; substantially asdescribed.

8. In ingot stripping apparatus, a movable trolley frame, a strippingcolumn movable vertically through said frame, a tongs-carrier movable inthe column, a chain connected to the tongs-carrier, and drums at theupper end of the column to which the chain is connected, gearing foractuating the drums, a shaft carried by the column for actuating thegearing, and an actuating gear for the shaft on the trolley and throughwhich the shaft is movable; substantially as described.

9. An ingot stripping apparatus, a vertically movable stripping column,a pair of winding drums journaled at the upper end of the column andhaving internal gearing, shafts extending loosely through the drums andhaving eccentrics, and pinions mounted on the eccentrics of the shaftsand meshing with the internal gears of the drums; substantially asdescribed.

10. In an ingot stripping apparatus, a vertically movable stripping coumn, a pair of intergeared shafts j ournale'd at the upper end of thecolumn, and having eccentric portions a winding drum loosely mounted oneach shaft and having an internal gear, pinions mounted on the eccentricportions of the shafts and intermeshing with the internal gears, andactuating connections for one of said shafts; substantially asdescribed.

11. In ingot stripping apparatus, a vertically moving stripping column,a pair of shafts journaled at the upper end of said column and havingeccentric portions, winding drums loosely journaled on the shafts andhaving internal gear teeth, pinions journaled on the eccentric portionsof the shafts and meshing with the internal gear teeth, a connectionbetween the pinions, and gearing for actuating the shafts at differentpositions of the column; substantially as described.

12. In an ingot stripper, a stripping column, a tongs-carrier guidedthereby, tongs pivoted to the carrier and having vertically extendingarm extensions, vertical rods connected to said extensions and passingthrough stops on the column, and springs arranged between said stops andbearings on the rods; substantially as described.

13. In an ingot stripper, a stripping column, a tongs-carrier mounted tomove on the stripping column, tongs pivoted to the said carrier andhaving upwardly extending arms bell cranks to which the arms areconnected, and upwardly extending rods connected to the bell cranks,said rods having spring stops on the column; substantially as described.

In testimony whereof, I have hereunto set my hand.

RAPHAEL s. KIRK.

Witnesses: G. W. SHEM, i EDWIN W. DIEHL.

